Boiler and boiler-furnace



(No Mdel.)

E. A. WHEELER.

BOILBR AND B'OILER FURNAGB.

Patented Jan; 10,

E Y faz/'6262257 I', 2 ,//ee@ if EARL A. WHEELER, OF SHARON,PENNSYLVANIA.

BOILER AND BOlL-EFt-FURNACE.

SPECIFICATION forming part of Letters Patent NO. 489,725, dated January10, 1893.

Applicationrtiled NovemberlO, 1891. Serial No. 411,537 (No model.)

To all whom, it may concern:

Be it known that I, EARL A. VHEELER, a citizen of the United States ofAmerica, residing at Sharon, in the county of Mercer and State ofPennsylvania, have invented certain new and useful Improvements inBoilers and Boiler-Furnaces, of which the following is a specification.

In an application filed by me on the 7th day of March 1891, No. 384,088,I illustrated in connection with an improved construction of furnace anovel construction of boiler, though no claim was made for the boiler insaid application.

The present application has for its subject a certain location of saidboiler relative to a heating, puddling, or other furnace for utilizingthe waste heat to generate steam.

The invention also consists of certain details of construction andarrangement.

In the accompanying drawings Figure 1 represents a sectional view of apuddiing furnace with my improved boilers arranged in the draft. stackat the rear. Fig. 2 is a plan view. Fig. 3 is an elevation of theboilers with a part oi' the furnace.

My improved boiler consists of upper and lower boilers singly or inseries connected by a stack of vertical pipes and adapted to be heatedin any suitable and improved manner. The series of boilers are connectedby circulating pipes which are located outside the front wall of thefurnace, being connected with the upper and lower sets of boilers so asto provide perfect circulation and permit of the flow of the water ofcondensation carried by the steam to the upper sets of boilers to theboilers of the lower set. The ends of the boilers extend outside of oron a line with the outer face of the brickwork, and thus are readilyaccessible and by removing the heads the stacks of pipes may be easilyreached for cleaning, repair, or like purpose. The boilers of the lowerset are shown at A, those of the upper set at B, the stacks of pipes atC, and the circulating pipes at E. A steam drum E', is in connectionwith each boiler of the set.

In order to utilize the waste heat of aheating or p uddling furnace Iarrange my boiler in the stack at the rear of the furnace and while Ihave shown but a single lower boiler and a single upper boiler in Fig. 1it will be obvious that the stack may be of sufficient size to providefor a series of upper and lower boilers as in Fig. 8. The stackispreferably of brickwork of a height equal to or a little less than thatof the boiler, forminga space around the boiler to permit the heating ofevery part of it except the extreme upper part of the upper boiler. Thestack is closed at its upper end and is continued at one side oftheboiler by an extension in the shape of an iron stack or a contractedbrick stack as desired so as to provide ample draft. As the products ofcombustion and the waste heat pass out at the chimney it encircles andcontacts with the boilers and the stacks ot' pipes with the result ofimparting heat thereto and thus serving to generate steam.. In order tosupplement this waste heat I provide a space at the rear of the furnacein which I place a set of grate bars G and beneath the grate bars I forman ash pit H so that a fire can be built and this be utilized inconnection with the waste heat or at times when the furnace is not inoperation.

I claim as my invention:

In combination with a heating or puddling furnace the generator A,located entirely within the stack of the furnace, the generator B, atthe mouth of said stack, vertical tubes connecting said generators, thesaid stack having its upper end closed about the upper generator, and asupplemental chimney or stack arranged alongside of the upper generator,substantially as described.

In testimonywhereof I affix my signature in presence of two witnesses.

EARL A. WHEELER.

Witnesses:

G. W. SHILLING, A. W. WILLIAMS.

